Sanitation
| Tue 13 Jan 2026
Beijing, Jan. 14 -- Qingdao Guanzhong Ecology has submitted a patent application for Zero-emission Ecological Toilet. Wang Xianbin, Li Chunlin, Zhang Shilei, Zhang Peiji, Li Shanshan, Fang Fei, Gu Pengxu, Jiang Shuo, Guan Haibin, Liu Xin and Gao Hui developed the invention.
The patent application number is CN202510333706 2025..